Fracture-mechanics behaviour of ceramic foam with macroscopic stress concentrator upon the tensile test
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00481389" target="_blank" >RIV/68081723:_____/17:00481389 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26210/17:PU124559
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.754.99" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.754.99</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.754.99" target="_blank" >10.4028/www.scientific.net/KEM.754.99</a>
Alternative languages
Result language
angličtina
Original language name
Fracture-mechanics behaviour of ceramic foam with macroscopic stress concentrator upon the tensile test
Original language description
The work investigates an influence of the macroscopic stress concentrator inside the ceramic open cell foam structure on the fracture-mechanics response of the foam upon the tensile test. As the concentrator, the central crack/rectangular notch was taken into account. The influence of the crack/notch length and width on the stress concentration ahead the concentrator tip was assessed using the simplified FE beam element based model with irregular cells simulating the real ceramic foam structure. Average principal stresses calculated on set of struts ahead the crack/notch tip were compared with average stresses in the intact structure. It was found that the ratio of these stresses increases linearly with the crack length. The stress concentration ratio is slightly lower in case of thick rectangular notch than in case of a thin crack. Furthermore, the failure load leading to complete fracture of the studied specimens, subjected to the tensile loading, were calculated using the same model. It is shown that the difference factor between the critical fracture force in case of structure without concentrator and with concentrator is very close to the concentration factor calculated from the average stresses on particular struts in the region in front of the concentrator tip.n
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20306 - Audio engineering, reliability analysis
Result continuities
Project
<a href="/en/project/GJ17-08447Y" target="_blank" >GJ17-08447Y: Computational modelling of failure in highly porous ceramic materials with real intrinsic defects</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Advances in Fracture and Damage Mechanics XVI
ISBN
978-3-0357-1168-4
ISSN
1662-9795
e-ISSN
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Number of pages
4
Pages from-to
99-102
Publisher name
Trans Tech Publications Ltd
Place of publication
Zurich
Event location
Florence
Event date
Jul 18, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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